Study of some requirements of the environmental management system at the test-work facilities of the Egyptian black sands at Abu Khashaba and Rasheed. .

The second requirement was to evaluate the emission of radioactivity from the studied facilities to the surrounding environment. It was very difficult to relate any change in the external effective dose rate received by the public around the facilities to the radiation activities inside these facilities. On another hand, the excess radon gas concentration at the downstream of Abu Khashaba and Rasheed facilities was found to be 1 and 3.57 (Bq/m3), respectively. These excess concentrations resulted in an increase in the annual effective doses of 0.025 and 0.092 (mSv/y) at Abu Khashaba and Rasheed facilities, respectively. The additional effective doses received by the members of public around the studied facilities are much below the recommended dose limit of 1 (mSv/y). Two requirements of the environmental management system at Abu Khashaba and Rasheed facilities were evaluated. The first requirement was the quantities of sands processed at both facilities. A total mass of 3509 (tons) was processed at Abu Khashaba facility representing a total radioactivity of 2.57x109 (Bq) while a total mass of 1973 (tons) was processed at Rashedd facility representing a total radioactivity of 5.97x109 (Bq). The majority of radioactivity at Abu Khashaba facility comes from raw sands while the majority of radioactivity at Rasheed facility comes from monazite mineral. This strongly suggests the establishment of an efficient marketing plan to displace monazite from Rasheed facility. The study recognized an efficient plan to displace the waste sands from Abu Khashaba and Rasheed facilities. It is concluded that the radiation activities at the studied facilities are consistent with requirements of environmental safety. - See more at: .